淀粉在口腔内能分解成葡萄糖。（）

下列有关有机物结构、性质和用途的叙述错误的是 [ ]

A．甲烷与氯气发生取代反应的产物二氯代甲烷无同分异构体，说明甲烷是正四面体结构

B．乙酸和乙酸乙酯中都含有碳氧双键，但它们都不能使溴的四氯化碳溶液褪色

C．检验多糖和葡萄糖可以用碘水

D．苯、乙烯都是重要的化工原料，可以合成橡胶、纤维与塑料

根据给出的价格鉴证资料，简要回答下面的问题。
某市公安局刑警大队于2010年5月20日破获一起盗窃案，追缴物品中有一辆进口轿车，因价格不明委托当地价格认证中心进行价格鉴证并出具了委托书以及相应的资料。根据刑警大队提供的有关资料，涉案汽车购于2005年4月20日，于2010年2月3日晚被盗。该车在案件破获后，即被公安机关追回。市价格认证中心委派了2名鉴证人员去现场，其中一名鉴证人员做现场勘查，另外一名鉴证人员做市场调查，鉴证人员中的其中一名与被盗车辆的所有者有亲属关系。在完成鉴证程序后，价格认证中心出具了鉴证结论书，并送达当事人。
请根据上述资料，回答下列问题：

阅读理解

     You never played the video dance game? Now such games are used to help lose weight!

     Like many other teenage boys, Jones loves sports. But at 5 feet, 175 pounds, he found his weight in

trouble. His doctor wanted him to lose 50 pounds so that he may be a good football game player by the

end of the summer.

     Jones chose the popular Dance Revolution video game at home to increase his activity. He had lost

about 10 pounds by changing his diet. Now, after two weeks' playing the game, he has lost another 10!

     A health study is being done by an insurance company. The company hopes that the game will lead to

better health and lower costs. "Obesity claims (肥胖索赔) last year cost us $ 77 million. We have to cut

those costs," said a member of the insurance group. The company provides a game console (游戏主机), a dance mat and software for the six-month, $ 60,000 study.

     The study is more than a commercial thing of an insurance company. It is widely supported by physical education and health professionals.

     In West Virginia, 43% of the nearly 6,000 children examined for heart disease risk were considered

over-weighted; more than 25% were too fat. "We are in a crisis of childhood obesity not only in West

Virginia but in America," said a researcher.

     Researchers are now looking at the potential for improving effects by using the game. A teacher in

West Virginia has been using the video games in her classes since last fall. She reported that the game does improve heart health as well as eye-hand coordination (协调能力), and her students take the video game as a great alternative to jumping rope or ball games.

     The US Education Department is putting the game in 20 schools to control childhood obesity. Well, are you going to try such to dance away your extra weight?

1. The insurance company is concerned about the health study because they ____.

A. care about children's future        

B. value medical science  

C. intend to reduce the obesity claims  

D. love dancing games

2. The underlined part is trying to tell us _____.

A. the study involves many insurance companies

B. the study is only an insurance company's business

C. the study is less important than the insurance company's money

D. it's not only the insurance company that is concerned about the study

3. It can be inferred that _____.

A. the government thinks highly of the dance game

B. in West Virginia, more than 25 % of the adults were too fat

C. a teacher is a failure in using the video game in her classes

D. the US Education Department isn't interested in the game

4. The most suitable title of the passage is _____.

A. Dance Away Your Weight    

B. Play the Video Dance Game  

C. Solve the Problem of Obesity  

D. Cut the Cost of Obesity Claims

在工程设计阶段，不属于监理审核内容的是（）。

A.需求范围

B.系统架构

C.测试用例

D.业务流程

TIG-R40焊丝牌号中“TIG”表示（）

A.钨极氩弧焊

B.氩气

C.氩气焊丝

D.钨极